Apr 14, 2022 · Apr 13, 2022
diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py
            button._ntimage_alt = image_alt

        if _is_dark("background"):
            button.configure(image=image_alt)
            # For Checkbuttons, we need to set `image` and `selectimage` at
            # the same time. Otherwise, when updating the `image` option
            # (such as when changing DPI), if the old `selectimage` has
            # just been overwritten, Tk will throw an error.
            image_kwargs = {"image": image_alt}
        else:
 button.configure(image=image)
 image_kwargs = {"image": image}
        # Checkbuttons may switch the background to `selectcolor` in the
        # checked state, so check separately which image it needs to use in
        # that state to still ensure enough contrast with the background.
                r2, g2, b2 = _get_color("activebackground")
                selectcolor = ((r1+r2)/2, (g1+g2)/2, (b1+b2)/2)
            if _is_dark(selectcolor):
 button.configure(selectimage=image_alt)
 image_kwargs["selectimage"] =image_alt
            else:
 button.configure(selectimage=image)
 image_kwargs["selectimage"] =image

        button.configure(height='18p', width='18p')
        button.configure(**image_kwargs,height='18p', width='18p')

    def _Button(self, text, image_file, toggle, command):
        if not toggle:
Original file line number	Diff line number	Diff line change
Expand Up		@@ -669,9 +669,13 @@ def _recolor_icon(image, color):
		button._ntimage_alt = image_alt

		if _is_dark("background"):
		button.configure(image=image_alt)
		# For Checkbuttons, we need to set `image` and `selectimage` at
		# the same time. Otherwise, when updating the `image` option
		# (such as when changing DPI), if the old `selectimage` has
		# just been overwritten, Tk will throw an error.
		image_kwargs = {"image": image_alt}
		else:
		button.configure(image=image)
		image_kwargs = {"image": image}
		# Checkbuttons may switch the background to `selectcolor` in the
		# checked state, so check separately which image it needs to use in
		# that state to still ensure enough contrast with the background.
Expand All		@@ -689,11 +693,11 @@ def _recolor_icon(image, color):
		r2, g2, b2 = _get_color("activebackground")
		selectcolor = ((r1+r2)/2, (g1+g2)/2, (b1+b2)/2)
		if _is_dark(selectcolor):
		button.configure(selectimage=image_alt)
		image_kwargs["selectimage"] =image_alt
		else:
		button.configure(selectimage=image)
		image_kwargs["selectimage"] =image

		button.configure(height='18p', width='18p')
		button.configure(**image_kwargs,height='18p', width='18p')

		def _Button(self, text, image_file, toggle, command):
		if not toggle:
Expand Down